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                Spoj 839 Optimal Marks                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
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                                <h3>题目描述</h3><p><div style="text-indent: 21pt" align="left">定义无向图中的一条边的值为：这条边连接的两个点的值的异或值。</div>
<div style="text-indent: 21pt" align="left">定义一个无向图的值为：这个无向图所有边的值的和。</div>
<div style="text-indent: 21pt" align="left">给你一个有<span>n个结点m条边的无向图。其中的一些点的值是给定的，而其余的点的值由你决定（但要求均为非负数），使得这个无向图的值最小。在无向图的值最小的前提下，使得无向图中所有点的值的和最小。</span></div>
<div align="left"><b>&nbsp;</b></div></p><hr/><h3>输入格式</h3><p><div style="text-indent: 21pt" align="left"><span style="color: black">第一行</span><span style="color: black">，</span><span style="color: black">两个数n，m，</span><span style="color: black">表示图的点数和边数</span><span style="color: black">。</span></div>
<div style="text-indent: 21pt" align="left"><span style="color: black">接下来n行</span><span style="color: black">，每行一个数，按编号给出每个点的值（若为负数则表示这个点的值由你决定，值的绝对值大小不超过10^9）。</span></div>
<div style="text-indent: 21pt" align="left"><span style="color: black">接下来m行，每行二个数a，b，表示编号为a与b的两点间连一条边。（保证无重边与自环。）</span></div>
<div style="text-indent: 21pt" align="left">&nbsp;</div></p><hr/><h3>输出格式</h3><p><div align="left"><span style="color: black">&nbsp;&nbsp;&nbsp; </span><span style="color: black">第一行，一个数，表示</span>无向图的值。</div>
<div align="left"><span>&nbsp;&nbsp;&nbsp; </span>第二行，一个数，表示无向图中所有点的值的和。</div>
<div align="left">&nbsp;</div></p><hr/><h3>样例输入</h3><pre>    3 2
    2
    -1
    0
    1 2
    2 3
 
</pre><hr/><h3>样例输出</h3><pre>    2
    2
 
</pre><hr/><h3>提示</h3><p><p>数据约定<br />
&nbsp; n&lt;=500，m&lt;=2000<br />
&nbsp;<br />
样例解释<br />
&nbsp;&nbsp;&nbsp; 2结点的值定为0即可。</p></p><hr/><h3>题目来源</h3><p>没有写明来源</p>
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